White has just played 56.Kg2. Suggest a good move for Black

The London Chess Grand Prix has begun with a grand ceremony. The first round (Report on Chess Blog.) saw one decisive game between current US chess champion Hikaru Nakamura and world title challenger Boris Gelfand of Israel. The game is a lesson in King activity in the endgame. In the position on the left, what would be the best move for Black?

If you just said Rh2 then you can pat yourself on the back. Rh2 is an interesting move as the White King would go into a clear losing endgame if he takes the Rook. For example, 1.Kxh2 Kf3 with discovered check. Black recovers the Rook and the pawn roll is unstoppable. Here is the full game with the Chess King applet as played in London.

Nakamura Hikaru – Gelfand Boris

Result: 0-1
Site: London
Date: 2012.09.21
[…] 1.e4 c5 2.¤f3 ¤c6 3.d4 cxd4 4.¤xd4 ¤f6 5.¤c3 e5 6.¤db5 d6 7.¤d5 ¤xd5 8.exd5 ¤b8 9.a4 ¥e7 10.¥e2 O-O 11.O-O ¤d7 12.¢h1 f5 13.f4 a6 14.¤a3 exf4 15.¥xf4 ¤e5 16.£d2 ¥d7 17.£b4 ¦b8 18.c4 a5 19.£b3 ¤g6 20.¥e3 b6 21.¤b5 ¥xb5 22.axb5 ¥g5 23.¥g1 ¤e5 24.£a3 ¥d2 25.¦ad1 ¥b4 26.£h3 £g5 27.¥e3 £f6 28.¥d4 ¥c5 29.¥c3 £g5 30.¥xe5 dxe5 31.g4 fxg4 32.£xg4 £xg4 33.¥xg4 ¥d6 34.¥e6+ ¢h8 35.¢g2 g6 36.b3 ¢g7 37.h3 e4 38.¥g4 h5 39.¥e2 ¦f6 40.¦de1 ¦f5 41.¥d1 ¦bf8 42.¦xf5 gxf5 43.¥xh5 ¢f6 44.¦h1 ¢g5 45.¥d1 ¢h4 46.¦f1 ¦g8+ 47.¢h1 ¦g5 48.¥c2 ¢xh3 49.¦f2 ¢g3 50.¦h2 ¦g4 51.¦g2+ ¢f4 52.¦f2+ ¢g5 53.¦d2 ¦g3 54.¦e2 ¦h3+ 55.¢g1 ¢f4 56.¢g2 ¦h2+ 57.¢f1 ¦xe2 58.¢xe2 ¢e5